Huntington's Disease

In what age range do most people with Huntington's disease start to show symptoms? (between __ and __ ; report answer as #, #)

How many CAG repeats does someone with Huntington's Disease have? (between __ and __ ; report answer as #, #)

How many copies of the mutant gene does a person need to have HD? (number)

A child who inherits a mutant HTT gene always shows symptoms at the same age as their parent.

• True

• False

Which of the following professionals can do genetic testing? Select all that apply.

• healthcare practitioner

• genetic counselor

• neurologists

• psychiatrist

Which of the following information is not needed to trace the family history?

• age of onset of symptoms

• severity of the symptoms

• parent's age when the relative was born

• age at death (with symptoms)

What would the molecular date for someone who received 23 repeats from dad and 19 repeats from mom look like? (report answer as #, #)